That's what we're doing today- cutting some of our older chestnut trees; to use as poles for our "raptor" roosts. We hope to let them dry just a bit (with the help of the leaves) before we have to wrassle them into place. They are really important if you don't want the mice, bluejays, 13-liners, etc., to get all the hazelnuts.
This is a Great Horned Owl using one of our "hawk roosts". They'll start using them immediately - but you DO have to put them up. This pole is black locust, but our stand is getting thin. Chestnut is pretty much just as rot resistant.
We need quite a few new ones; these will be as dry as we can get them in a week or two. If you want to learn how to get a 30' tall tree up; think about coming and giving us a hand; we can use the help.